<!DOCTYPE html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/webxr/resources/webxr_util.js"></script>
<script src="/webxr/resources/webxr_test_constants.js"></script>

<script>

// This test is Chromium-specific because it uses the default human eye height
// of 1.6 meters defined in xr_stationary_reference_space.cc
let testName = "XRFrame.getPose works between eye-level and floor-level spaces";

let fakeDeviceInitParams = TRACKED_IMMERSIVE_DEVICE;

let testFunction = function(session, fakeDeviceController, t) {
  return Promise.all([
    session.requestReferenceSpace('local'),
    session.requestReferenceSpace('local-floor')
  ]).then((spaces) => new Promise((resolve) => {
    function onFrame(time, xrFrame) {
      // eye-level space starts out with originOffset = identity matrix
      let eye_level = spaces[0];

      // Make sure going between eye-level and floor-level spaces takes the
      // estimated eye height into account.
      let floor_level = spaces[1];
      let eye_level_from_floor_level = xrFrame.getPose(eye_level, floor_level);
      assert_equals(eye_level_from_floor_level.transform.position.y, 1.6);

      // Finished test.
      resolve();
    }

    session.requestAnimationFrame(onFrame);
  }));
};

xr_session_promise_test(
  testName, testFunction, fakeDeviceInitParams, 'immersive-vr', { 'requiredFeatures': ['local-floor'] });

</script>
